from flask import abort
from flask import current_app
from flask import g, jsonify
from flask import redirect
from flask import render_template
from flask import request

from info import constants, db
from info.models import Category, News, User
from info.modules.profile import profile_blu
from info.utils.Image_storage import storage
from info.utils.common import user_login_data
from info.utils.response_code import RET


@profile_blu.route('/other_news_list')
def other_news_list():
    """
    返回指定用户发布的新闻
    :return:
    """
    # 取参数
    other_id = request.args.get('user_id')
    page = request.args.get('p',1)
    # 判断参数
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.PARAMERR, errmsg='参数错误')

    try:
        other = User.query.get(other_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg='数据查询失败')

    if not other:
        return jsonify(errno=RET.NODATA, errmsg='当前用户不存在')

    try:
        paginate = other.news_list.paginate(page,constants.USER_COLLECTION_MAX_NEWS,False)
        news_li = paginate.items
        # 获取当前页
        current_page = paginate.page
        # 获取总页数
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg='数据查询失败')

    news_dict_li = []

    for news_item in news_li:
        news_dict_li.append(news_item.to_basic_dict())

    data = {"news_list": news_dict_li,
            "total_page": total_page,
            "current_page": current_page}
    return jsonify(errno=RET.OK, errmsg="OK", data=data)


@profile_blu.route('/other_info',methods=['POST','GET'])
@user_login_data
def other_info():

    if request.method == 'GET':
        user = g.user

        # 去查询其他人的用户信息
        other_id = request.args.get('user_id')
        if not other_id:
            abort(404)

        # 查询指定的id的用户信息
        try:
            other = User.query.get(other_id)
        except Exception as e:
            current_app.logger.error(e)

        if not other:
            abort(404)

        is_followed = False
        # 如果当前新闻有作者，并且当前用户已关注过这个用户
        if other.user and user:
            if other.user in user.followed:
                is_followed = True

        data = {
            "user":g.user.to_dict() if g.user else None,
            "other_info":other.to_dict(),
            "is_followed":is_followed
        }
        return render_template('news/other.html',data=data)

    # POST请求处理
    # 关注或取消关注
    # 取到自己的登录信息
    user = g.user
    if not user:
        return jsonify(errno=RET.SESSIONERR, errmsg='未登录')

    # 1.获取参数
    user_id = request.json.get('user_id')
    action = request.json.get('action')
    # 2.判断参数
    if not all([user_id,action]):
        return jsonify(errno=RET.PARAMERR, errmsg='参数错误')
    if action not in('follow','unfollow'):
        return jsonify(errno=RET.PARAMERR, errmsg='参数错误')
    # 3.取到要被关注的用户
    try:
        other = User.query.get(user_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg='数据查询失败')
    if not other:
        return jsonify(errno=RET.NODATA, errmsg='未查询的到数据')
    # 根据操作
    if action == 'follow':
        if other not in user.followed:
            # 当前用户的关注列表添加一个值
            user.followed.append(other)
        else:
            return jsonify(errno=RET.DATAEXIST, errmsg='当前用户已被关注')
    else:
        # 取消关注
        if other in user.followed:
            user.followed.remove(other)
        else:
            return jsonify(errno=RET.DATAEXIST, errmsg='当前用户未被关注')

    return jsonify(errno=RET.OK, errmsg='操作成功')


@profile_blu.route('/user_follow')
@user_login_data
def user_follow():

    # 查询数据
    # 获取页数
    p = request.args.get("p", 1)
    try:
        p = int(p)
    except Exception as e:
        current_app.logger.error(e)
        p = 1
    # 取到当前登录用户
    user = g.user

    follows = []
    current_page = 1
    total_page = 1
    try:
        paginate = user.followed.paginate(p, constants.USER_FOLLOWED_MAX_COUNT, False)
        # 获取当前页数据
        follows = paginate.items
        # 获取当前页
        current_page = paginate.page
        # 获取总页数
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    user_dict_li = []

    for follow_user in follows:
        user_dict_li.append(follow_user.to_dict())

    data = {"users": user_dict_li,
            "total_page": total_page,
            "current_page": current_page
            }

    return render_template('news/user_follow.html', data=data)


@profile_blu.route('/news_list')
@user_login_data
def user_news_list():

    # 获取参数
    page = request.args.get('p',1)
    # 判断参数
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    user = g.user
    news_list = []
    current_page = 1
    total_page = 1
    try:
        paginate = News.query.filter(News.user_id==user.id).paginate(page,constants.USER_COLLECTION_MAX_NEWS,False)
        news_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    new_dict_li = []
    for news in news_list:
        new_dict_li.append(news.to_review_dict())
    data = {
        "news_list":new_dict_li,
        "current_page":current_page,
        "total_page":total_page
    }

    return render_template('news/user_news_list.html',data=data)


@profile_blu.route('/news_release',methods=['GET','POST'])
@user_login_data
def news_release():

    if request.method == 'GET':
        # 1.加载新闻分类数据
        categories = []
        try:
            categories = Category.query.all()
        except Exception as e:
            current_app.logger.error(e)
        category_dict_li = []
        for category in categories:
            category_dict_li.append(category.to_dict())
        # 移除"最新"分类
        category_dict_li.pop(0)

        return render_template('news/user_news_release.html',data={"categories":category_dict_li})

    # POST请求处理
    # 1. 获取要提交的数据
    # 新闻标题
    title = request.form.get("title")
    # 新闻来源
    source = "个人发布"
    # 新闻摘要
    digest = request.form.get("digest")
    # 新闻内容
    content = request.form.get("content")
    # 索引图片
    index_image = request.files.get("index_image")
    # 分类id
    category_id = request.form.get("category_id")
    # 校验参数
    # 2.1 判断数据是否有值
    if not all([title, source, digest, content, index_image, category_id]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数有误")

    # 2.2
    try:
        category_id = int(category_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.PARAMERR, errmsg="参数有误")
    # 3.取到图片，将图片上传到七牛云
    try:
        index_image_data = index_image.read()
        # 上传到七牛云
        key = storage(index_image_data)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.PARAMERR, errmsg='参数错误')

    # 初始化新闻模型
    news = News()
    news.title = title
    news.digest = digest
    news.source = source
    news.content = content
    news.index_image_url = constants.QINIU_DOMIN_PREFIX + key
    news.category_id = category_id
    news.user_id = g.user.id
    # 1代表待审核状态
    news.status = 1

    # 4. 保存到数据库
    try:
        db.session.add(news)
        db.session.commit()
    except Exception as e:
        current_app.logger.error(e)
        db.session.rollback()
        return jsonify(errno=RET.DBERR, errmsg="保存数据失败")
    # 5. 返回结果
    return jsonify(errno=RET.OK, errmsg="发布成功，等待审核")


@profile_blu.route('/collection')
@user_login_data
def user_collection():

    # 1.获取参数
    page = request.args.get('p',1)
    # 2.判断参数
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    # 3.查询用户指定页数的收藏新闻
    user = g.user
    news_list = []
    current_page = 1
    total_page = 1
    try:
        paginate = user.collection_news.paginate(page, constants.USER_COLLECTION_MAX_NEWS,False)
        current_page = paginate.page
        total_page = paginate.pages
        news_list = paginate.items
    except Exception as e:
        current_app.logger.error(e)

    news_dict_li = []
    for news in news_list:
        news_dict_li.append(news.to_basic_dict())

    data = {
        "total_page":total_page,
        "current_page":current_page,
        "collections":news_dict_li
    }

    return render_template('news/user_collection.html', data=data)


@profile_blu.route('/pass_info', methods=['GET','POST'])
@user_login_data
def pass_info():
    if request.method == 'GET':
        return render_template('news/user_pass_info.html')
    # 1,获取参数
    old_password = request.json.get('old_password')
    new_password = request.json.get('new_password')
    # 2.校验参数
    if not all([old_password,new_password]):
        return jsonify(errno=RET.PARAMERR, errmsg='参数错误')
    # 3.判断旧密码是否正确
    user = g.user
    if not user.check_password(old_password):
        return jsonify(errno=RET.PWDERR, errmsg='原密码错误')
    # 4.设置新密码
    user.password = new_password

    return jsonify(errno=RET.OK, errmsg='保存成功')


@profile_blu.route('/pic_info', methods=['GET','POST'])
@user_login_data
def pic_info():
    user = g.user
    if request.method == 'GET':
        return render_template('news/user_pic_info.html',data={"user": user.to_dict()})

    # 如果是post表示修改头像
    # 1.取到上传的图片
    try:
        avatar = request.files.get('avatar').read()
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.PARAMERR, errmsg='参数错误')
    # 2.上传头像
    try:
        # 使用自己封装storage方法进行图片上传
        key = storage(avatar)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.THIRDERR, errmsg='上传头像失败')
    # 3.保存头像地址
    user.avatar_url = key
    return jsonify(errno=RET.OK, errmsg='OK', data = {"avatar_url":constants.QINIU_DOMIN_PREFIX+key})


@profile_blu.route('/base_info', methods=['GET','POST'])
@user_login_data
def base_info():
    # 不同的请求方式，做不同的事情
    if request.method == 'GET':
        return render_template('news/user_base_info.html',data={"user":g.user.to_dict()})
    # 代表修改数据
    # 1.取到传入的参数
    nick_name = request.json.get("nick_name")
    signature = request.json.get("signature")
    gender = request.json.get("gender")

    # 2.校验参数
    if not all([nick_name, signature, gender]):
        return jsonify(errno=RET.PARAMERR, errmsg='参数错误')
    if gender not in ['MAN','WOMAN']:
        return jsonify(errno=RET.PARAMERR, errmsg='参数错误')

    user = g.user
    user.signature = signature
    user.nick_name = nick_name
    user.gender = gender

    return jsonify(errno=RET.OK, errmsg='OK')


@profile_blu.route('/info')
@user_login_data
def user_info():
    user = g.user
    if not user:
        # 代表没有登录，重定向到首页
        return redirect('/')
    data = {"user":user.to_dict()}
    return render_template('news/user.html', data=data)